EP3680698B1 - Procédé de traitement de lentille de caméra, lentille de caméra, ensemble caméra et dispositif électronique - Google Patents

Procédé de traitement de lentille de caméra, lentille de caméra, ensemble caméra et dispositif électronique Download PDF

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Publication number
EP3680698B1
EP3680698B1 EP19208015.8A EP19208015A EP3680698B1 EP 3680698 B1 EP3680698 B1 EP 3680698B1 EP 19208015 A EP19208015 A EP 19208015A EP 3680698 B1 EP3680698 B1 EP 3680698B1
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EP
European Patent Office
Prior art keywords
lens
camera
lens group
group
barrel
Prior art date
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Active
Application number
EP19208015.8A
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German (de)
English (en)
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EP3680698A1 (fr
Inventor
Zhidong Yin
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beijing Xiaomi Mobile Software Co Ltd
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Beijing Xiaomi Mobile Software Co Ltd
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Publication of EP3680698A1 publication Critical patent/EP3680698A1/fr
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Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00—Optical objectives specially designed for the purposes specified below
    • G02B13/001—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras
    • G02B13/0015—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design
    • G02B13/002—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design having at least one aspherical surface
    • G02B13/004—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design having at least one aspherical surface having four lenses
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
    • G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
    • G02B7/021—Mountings, adjusting means, or light-tight connections, for optical elements for lenses for more than one lens
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/50—Constructional details
    • H04N23/55—Optical parts specially adapted for electronic image sensors; Mounting thereof
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00—Optical objectives specially designed for the purposes specified below
    • G02B13/001—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
    • G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
    • G02B7/025—Mountings, adjusting means, or light-tight connections, for optical elements for lenses using glue

Definitions

  • the present disclosure relates to the field of terminal device technology, and in particular to a method of processing camera lens, a camera lens, a camera assembly and an electronic device.
  • CN108712597A discloses a lens, a lens processing technique, a camera module, and an electronic device.
  • the lens includes a lens cone including a cone wall and a clamping groove formed by surrounding the cone wall; and a lens group clamped and fixed in the clamping groove, where one end of the lens group for incidence of external light protrudes from an end surface of the cone wall.
  • US2011/0063739A1 discloses a lens unit, camera module, and manufacturing method of lens unit.
  • the lens unit includes a plurality of lenses each including a lens portion and a flange portion surrounding the lens portion, and a holder body that holds the plurality of lenses successively arranged along an optical axis.
  • CN207528984U discloses a lens assembly.
  • the lens assembly includes a lens cone and a lens group including at least two lenses, where the lens cone includes a first entry close to an object side and in communication with an accommodating space and a second entry close to an image side and in communication with the accommodating space, and an inner wall of the lens cone protrudes towards a direction close to an optical axis to form a stopper portion.
  • the present disclosure provides a method of processing camera lens, a camera lens, a camera assembly and an electronic device.
  • a camera lens as defined by claim 9.
  • a camera assembly as defined by claim 10.
  • an electronic device as defined by claim 11.
  • first, second, third, etc. in the present disclosure, the information should not be limited to these terms. These terms are used only to distinguish the same type of information from each other.
  • first information may also be referred to as the second information without departing from the scope of the present disclosure, and similarly, the second information may also be referred to as the first information.
  • word “if' as used herein may be interpreted as "when” or “as” or "determining in response to”.
  • FIG. 1 is a flowchart illustrating a method of processing camera lens according to an example of the present disclosure. As shown in FIG. 1 , the method may include the following steps.
  • obtaining a first lens group and a second lens group where the second lens group is configured to form a light emitting surface of the camera lens, and the first lens group is configured to form a light incidence surface of the camera lens and includes a plurality of interconnected lenses.
  • the lenses included in the first lens group and the second lens group may be one or more of a resin lens, a polycarbonate lens and a glass lens, which is not limited herein.
  • the first lens group may include a plurality of interconnected lenses. Further, the first lens group is configured to form the light incidence surface of the camera lens, and the second lens group is configured to form the light emitting surface of the camera lens.
  • external light is incident from the first lens group, and then is emitted from the first lens group and then input into the second lens group. Finally, the external light is transmitted into an image sensor to obtain image information.
  • step 102 mounting the second lens group into the lens barrel.
  • step 103 mounting the first lens group into the lens barrel and protruding the first lens group partially from an end surface of the lens barrel to obtain the camera lens.
  • the lens group included in the camera lens may be mounted along an incidence direction of external light. Specifically, the second lens group is mounted into the lens barrel, and then the first lens group is mounted into the lens barrel and is configured to partially protrude from an end surface of the lens barrel. In this way, the camera lens may be obtained.
  • the first lens group may include two or more lenses.
  • the first lens group may include a first lens and a second lens.
  • the first lens group may include a first lens and at least one second lens.
  • the first lens is configured to form the light incidence surface of the camera lens, and protrudes from the end surface of the lens barrel. At least one lens in the first lens group can be packaged with the lens barrel to realize relative fixing between the first lens group and the lens barrel.
  • the first lens group including the first lens and the second lens is still taken as an example. After the first lens group is mounted into the lens barrel, the second lens and the lens barrel may be packaged. Since the first lens and the second lens are fixedly connected, the first lens is fixed relative to the lens barrel. Further, because it is not required to connect the first lens with the lens barrel, the first lens is entirely protruded from the end surface of the lens barrel, facilitating reducing a size of the camera lens.
  • an end of the first lens close to the second lens may be packaged with the lens barrel as well, so that an end of the first lens away from the second lens protrudes from the lens barrel, helping to reduce the size of the camera lens.
  • the first lens and the second lens may be both packaged with the lens barrel, which is not described herein.
  • the first lens group may be obtained by interconnecting the lenses in a glue dispensing manner.
  • a recessing portion may be formed on one of the lenses, and then, another lens is pressed into the recessing portion to realize tight fitting.
  • two adjacent lenses may also be connected by dispensing glue.
  • the interconnected lenses may also be tightly fitted and fixed by dispensing glue, which is not limited herein.
  • the second lens group may include a single lens or a plurality of lenses.
  • the single lens is configured to form the light emitting surface of the camera lens.
  • the second lens group may include at least one third lens and a fourth lens for forming the light emitting surface of the camera lens, and the at least one third lens is located between the fourth lens and the first lens group. Based on this, the fourth lens may be firstly mounted into the lens barrel, then, the at least one third lens is sequentially mounted into the lens barrel, and then, the first lens group is mounted into the lens barrel.
  • the second lens group may be mounted into the lens barrel after the first lens group is obtained by connecting a plurality of lenses.
  • the second lens group may also be firstly mounted into the lens barrel, and then, the first lens group is obtained by connecting a plurality of lenses and then the first lens group is mounted into the lens barrel, which is not limited herein.
  • light extinction treatment may also be performed for at least one lens included in the first lens group or the second lens group, or light extinction treatment may also be performed for at least one lens included in the first lens group and the second lens group, so as to prevent the lens from generating flares during use.
  • a light shielding layer may be formed by coating non-transparent material on one region of one lens included in the camera lens, and surrounding stray light and scattered light are blocked by the light shielding layer.
  • the non-transparent material may include ink, paint, or any other material.
  • a corresponding light shielding layer may also be formed by coating ink on a region corresponding to a plurality of lenses or each lens included in the camera lens, which is not limited herein.
  • the second lens group can be assembled into the lens barrel prior to the first lens group, so that the bearing structure may be disposed at an end of the lens barrel away from the light incidence surface to bear the second lens group.
  • the bearing structure is disposed at an end of the lens barrel close to the light incidence surface, and thus the volume of an end of the lens barrel close to the light incidence surface is reduced.
  • the lenses included in the first lens group are directly and fixedly connected, a part of the first lens group can protrudes from the end surface of the lens barrel to reduce the volume of the lens barrel and facilitate the miniaturization of the camera lens.
  • a size of an opening for inserting the camera lens on a screen assembly of the electronic device may be reduced, thereby facilitating increasing a screen-to-body ratio.
  • the camera lens 100 may be applied to a camera assembly 200, and the camera assembly 200 may be further taken as a front camera of an electronic device 300.
  • the electronic device 300 may include a mobile device, such as a mobile phone, a tablet computer and an e-reader, which is not limited herein.
  • the camera lens 100 including five lenses.
  • a processing method of the camera lens 100 may include the following steps.
  • the camera lens 100 includes five lenses, which sequentially are the first lens 1, the second lens 2, the front third lens 3, the rear third lens 4 and the fourth lens 5.
  • the first lens 1 and the second lens 2 are connected to form a first lens group 6, and the front third lens 3, the rear third lens 4 and the fourth lens 5 form a second lens group.
  • the fourth lens 5 is configured to form a light emitting surface of the camera lens 100
  • the first lens 1 is configured to form a light incidence surface of the camera lens 100
  • distances from the second lens 2, the front third lens 3 and the rear third lens 4 to the light incidence surface increase sequentially. That is, when the camera assembly 200 is taken as the front camera of the electronic device 300, distances from the first lens 1, the second lens 2, the front third lens 3, the rear third lens 4 and the fourth lens 5 to the a display region of the electronic device 300 sequentially increase.
  • the camera lens 100 including five lenses.
  • the number of lenses included in the camera lens may be less than five or more than five, which is not limited herein.
  • step 402 obtaining the first lens group 6 by connecting the first lens 1 with the second lens 2 in a glue dispensing manner.
  • the first lens 1 and the second lens 2 may be connected in a glue bonding manner, so that the first lens 1 is positioned and fixed through the second lens 2. Subsequently, it is avoided that the first lens 1 is fixed through the lens barrel 7, thereby facilitating the miniaturization of the camera lens 100.
  • the first lens group 6 may also be obtained by interconnecting more than two lenses, which is not limited herein.
  • step 403 mounting the fourth lens 5 is into the lens barrel 7.
  • step 404 mounting the rear third lens 4 into the lens barrel 7.
  • step 406 mounting the first lens group 6 to the lens barrel 7, and protruding a part of the first lens group 6 from an end surface 17 of the lens barrel 7.
  • all lenses included in the camera lens 100 may be sequentially mounted along an incidence direction of external light.
  • the fourth lens 5, the rear third lens 4, the front third lens 3 and the first lens group 6 may be sequentially mounted along a direction shown by an arrow A.
  • An end 16 of the first lens group 6 protrudes from the end surface 17 of the lens barrel 7, thereby facilitating reducing an end of the camera lens 100 close to the first lens group 6. In this way, a spatial volume of the camera lens is reduced, and the screen-to-body ratio of the electronic device 300 is increased.
  • a diameter of an end of the lens barrel 7 close to the first lens group 6 may be at least greater than or equal to a diameter of the fourth lens 5. Therefore, if the second lens 2 is packaged with the lens barrel 7, the diameters of the second lens 2, the front third lens 3, the rear third lens 4 and the fourth lens 5 in the present disclosure may be substantially same, and thus a mounting difficulty may be reduced.
  • the second lens group is assembled into the lens barrel 7 prior to the first lens group 6, so that the bearing structure 9 may be disposed at an end of the lens barrel 7 away from the light incidence surface to bear the second lens group. In this way, it is avoided that the bearing structure 9 is disposed at an end of the lens barrel 7 close to the light incidence surface, and thus the volume of an end of the lens barrel 7 close to the light incidence surface is reduced.
  • the second lens 2 is packaged with the lens barrel 7, the diameters of the second lens 2, the front third lens 3, the rear third lens 4 and the fourth lens 5 may also sequentially decrease. Therefore, it is ensured that during the process of mounting the fourth lens 5 from an end of the lens barrel 7 close to the outside into the lens barrel 7, the volume of an end of the lens barrel 7 away from the outside is reduced. In this way, the volume of the camera lens 100 is reduced, and thus a spatial layout inside the electronic device 300 can be better used.
  • step 407 obtaining the camera lens 100 by packaging the second lens 2 and the lens barrel 7.
  • the second lens 2 and the lens barrel 7 may be bonded by glue or other bonding material.
  • the first lens 1 and the second lens 2 are fixed, the first lens 1 is also fixedly disposed relative to the lens barrel 7 without directly generating connection with the lens barrel 7.
  • the first lens 1 may be completely protruded from the end surface 17 of the lens barrel 7 without disposing a structure for bearing the first lens on the lens barrel 7, thereby facilitating reducing the lens barrel 7 and reducing the volume of the camera lens 100.
  • light extinction treatment may also be performed for at least one lens of the plurality of lenses.
  • a light shielding layer 8 may be obtained by performing an ink coating process on the lens, and the light shielding layer 8 may be located in an edge region of at least one lens to block stray light and avoid affecting imaging of the camera assembly 200.
  • the light shielding layer 8 may be formed in the edge region of each lens.
  • the light shielding layer 8 may be formed on a surface of the lens used for external light to enter.
  • the light shielding layer 8 may also be formed on a surface of the lens used for external light to be emitted.
  • the light shielding layer 8 may also be formed on both the incidence surface and the emitting surface of the lens, which is not limited herein.
  • the light shielding layer 8 may be formed through the ink coating process.
  • the camera assembly 200 may be assembled to the electronic device 300.
  • a technical effect that the camera lens 100 of the present disclosure can increase the screen-to-body ratio is described in detail herein with the electronic device 300 being a mobile electronic device as shown in FIG. 2 .
  • the camera assembly 200 is mounted into the mobile electronic device and taken as a front camera of the mobile device. A user may take self-photographing or a video through the camera assembly 200.
  • the mobile electronic device may include a screen assembly 301.
  • the screen assembly 301 may include an opening 3011, and the opening 3011 may be used to accommodate a part of the first lens group 6 protruded from the lens barrel 7.
  • an opening is disposed on the lens barrel to allow the lens barrel to wrap the lens.
  • the size of the opening 3011 may be reduced due to reduction of a circumferential size of the camera lens 100, thereby increasing a strength of the screen assembly 301 and the screen-to-body ratio.
  • the screen assembly 301 may include a display panel 3012 and a front panel 3013 cooperating with the display panel 3012.
  • the display panel 3012 may be used to display image information.
  • the front panel 3013 may include a shielding region around the display panel 3012 and used to cover a circuit board and relevant electronic elements inside the mobile electronic device.
  • the opening 3011 may be provided in the blocking region of the front panel 3013 to avoid a display region of the display panel 3012. Certainly, in some other examples, the opening 3011 may also be provided on the display panel 3012, which is not limited herein.
  • an edge of the display region corresponding to the display panel 3012 is substantially matched with an edge of the mobile electronic device, that is, full screen display of the electronic device 300 is substantially achieved.
  • the opening 3011 may be provided on the display panel 3012. Similarly, it is not required to dispose the opening 3011 at an end of the lens barrel 7 close to the display panel 3012, but to insert the protruding end of the first lens group 6 only, thereby further increasing the screen-to-body ratio of the mobile electronic device.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Studio Devices (AREA)
  • Lens Barrels (AREA)

Claims (13)

  1. Procédé de traitement d'un objectif (100), dans lequel l'objectif (100) comprend un barillet (7), le procédé comprenant :
    l'obtention d'un premier groupe de lentilles (6) et d'un second groupe de lentilles, dans lequel le premier groupe de lentilles (6) est configuré pour former une surface d'incidence de lumière de l'objectif (100) et comprend une pluralité de lentilles interconnectées (1, 2) ; et le second groupe de lentilles est configuré pour former une surface d'émission de lumière de l'objectif (100) ;
    et caractérisé en ce que le procédé comprend en outre :
    la disposition d'une structure d'appui (9) au niveau d'une extrémité du barillet (7) à distance de la surface d'incidence de lumière ; et
    le montage séquentiel du second groupe de lentilles et du premier groupe de lentilles (6) dans le barillet (7) le long d'une direction d'incidence d'une lumière externe pour obtenir l'objectif (100), dans lequel le second groupe de lentilles est supporté par la structure d'appui (9) et le premier groupe de lentilles (6) fait saillie partiellement à partir d'une surface d'extrémité (17) du barillet (7).
  2. Procédé selon la revendication 1, dans lequel le premier groupe de lentilles (6) comprend une première lentille (1) pour former la surface d'incidence de lumière de l'objectif (100) et au moins une deuxième lentille (2).
  3. Procédé selon la revendication 2, comprenant en outre :
    l'obtention du premier groupe de lentilles (6) en reliant la première lentille (1) à l'au moins une deuxième lentille (2).
  4. Procédé selon la revendication 1, dans lequel le second groupe de lentilles comprend au moins une lentille (3, 4, 5).
  5. Procédé selon la revendication 1, dans lequel le second groupe de lentilles comprend au moins une troisième lentille (3, 4) et une quatrième lentille (5) pour former la surface d'émission de lumière de l'objectif (100), et pour situer l'au moins une troisième lentille (3) entre la quatrième lentille (5) et le premier groupe de lentilles (6) ; et
    le montage du second groupe de lentilles dans le barillet (7) comprend :
    le montage de la quatrième lentille (5) dans le barillet (7) ; et
    le montage séquentiel de l'au moins une troisième lentille (3, 4) dans le barillet (7).
  6. Procédé selon la revendication 1, comprenant en outre :
    le conditionnement d'au moins une lentille dans le premier groupe de lentilles (6) avec le barillet (7).
  7. Procédé selon la revendication 1, comprenant en outre :
    la réalisation d'un traitement d'extinction de lumière pour au moins une lentille dans le premier groupe de lentilles (6) ou le second groupe de lentilles.
  8. Procédé selon la revendication 7, dans lequel la réalisation d'un traitement d'extinction de lumière pour l'au moins une lentille comprend :
    la formation d'une couche de protection contre la lumière en revêtant un matériau non transparent sur l'au moins une lentille.
  9. Objectif (100) fabriqué par le procédé de traitement de l'objectif (100) selon l'une quelconque des revendications 1 à 8.
  10. Ensemble caméra (200), comprenant l'objectif (100) selon la revendication 9.
  11. Dispositif électronique (300), comprenant :
    un ensemble écran (301) ; et
    l'ensemble caméra (200) selon la revendication 10.
  12. Dispositif électronique (300) selon la revendication 11, dans lequel un diamètre d'une première extrémité du barillet (7) est supérieur ou égal à un diamètre d'une seconde extrémité du barillet (7), dans lequel la première extrémité est plus proche du premier groupe de lentilles (6) que du second groupe de lentilles, et la seconde extrémité est plus proche du second groupe de lentilles que du premier groupe de lentilles (6).
  13. Dispositif électronique (300) selon la revendication 11, dans lequel l'ensemble écran (301) comprend une ouverture (3011) pour loger une partie du premier groupe de lentilles (6) faisant saillie depuis une surface d'extrémité (17) du barillet (7).
EP19208015.8A 2018-11-09 2019-11-08 Procédé de traitement de lentille de caméra, lentille de caméra, ensemble caméra et dispositif électronique Active EP3680698B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201811331003.8A CN111175925A (zh) 2018-11-09 2018-11-09 镜头的加工方法、镜头、摄像头模组和电子设备

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EP3680698B1 true EP3680698B1 (fr) 2023-07-26

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US (1) US11137575B2 (fr)
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WO2022126660A1 (fr) * 2020-12-18 2022-06-23 欧菲光集团股份有限公司 Ensemble lentille, module de lentille, et dispositif électronique
USD975669S1 (en) * 2021-07-21 2023-01-17 Beijing Xiaomi Mobile Software Co., Ltd. Mobile phone

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CN101983348B (zh) 2008-04-09 2014-07-02 日立麦克赛尔株式会社 透镜单元、摄像机组件及透镜单元的生产方法
KR101444585B1 (ko) * 2013-03-06 2014-09-24 삼성전기주식회사 렌즈 모듈
US10025063B2 (en) * 2014-04-10 2018-07-17 Mems Start, Llc Miniature lens assembly and method of making same
US9485414B2 (en) * 2014-06-20 2016-11-01 John Visosky Eye contact enabling device for video conferencing
CN104076494B (zh) * 2014-07-03 2016-04-27 福建福光股份有限公司 宽光谱强光力摄像镜头
CN104375253B (zh) * 2014-11-17 2017-01-25 中国科学院光电技术研究所 一种提高成像光学镜头力学稳定性的装置及方法
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CN207528984U (zh) 2017-10-25 2018-06-22 瑞声科技(新加坡)有限公司 镜头组件
JP6861836B2 (ja) 2018-07-05 2021-04-21 北京小米移動軟件有限公司Ｂｅｉｊｉｎｇ Ｘｉａｏｍｉ Ｍｏｂｉｌｅ Ｓｏｆｔｗａｒｅ Ｃｏ．，Ｌｔｄ． レンズユニット、レンズユニット加工プロセス、カメラモジュール及び電子機器
CN108712597B (zh) * 2018-07-05 2023-10-17 北京小米移动软件有限公司 镜头、镜头加工工艺、摄像头模组及电子设备

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EP3680698A1 (fr) 2020-07-15
US20200150388A1 (en) 2020-05-14
CN111175925A (zh) 2020-05-19
US11137575B2 (en) 2021-10-05

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